Service difficulty report · Floor Support · Boeing 7377BD

Difficulty date
December 15, 2022
Submitted
January 26, 2023
Operation
Air carrier
Aircraft
N7713A
Make and model
Boeing 7377BD
Aircraft serial
33919
Aircraft time
57,380 hours, 30,141 cycles
Part
Floor Support
Condition
Corroded
Location
Bs 294
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON FLOOR SUPPORT AT FWD WET AREA BS294+14 LBL11. REMOVED DAMAGED FLOOR SUPPORT AT FWD WET AREA BS294+14 LBL11 IAW SRM 51-40-02-0G-0. REMOVED CORROSION ON FLOOR SUPPORT AT FWD WET AREA BS294+14 LBL11 IAW SRM 51-10-02 ON AN AREA OF 1.0'X1.0' MAXIMUM MATERIAL REMOVED MORE THAN 50% OF ORIGINAL THICKNESS, FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-0I-2 AND SRM 53-10-51-1A-1. REMOVED THE DAMAGED FLOOR SUPPORT IAW SRM 51-40-02-0G-0, LOCATED AND DRILLED NEW FLOOR SUPPORT AT FWD WET AREA BS 294+14 LBL11 IAW SRM 51-40-05 AND DWG 141A5690. INSTALLED A NEW FLOOR SUPPORT AT FWD WET AREA BS 294 - 312 LBL 11 IAW SRM 51-40-02 AND DWG 141A5600.

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